David murphy



No. 624,847. Patented May 9, H899.

D. MURPHY.

BALANCE MECHANISM FOR WHEELED VEHICLES.

, (Application filed Bar. 16, 1899.) (No Model.)

I G at the other.

NIED STATES PATENT OFFICE.

DAVID MURPHY, OF OTAl-IUHU, NEW ZEALAND.

BALANCE MECHANISM FOR WHEELED VEHICLES.

SPECIFICATION forming part of Letters Patent No. 624,847, dated May 9, 1899.

Original application filed August 30, 1897, Serial No. 650,053. Divided and this application filed March 16, 1899. Serial No. 709,353. (No model.)

To all whom it may concern:

Be it known that I, DAVID MURPHY, a citizen of New Zealand, residing at Otahuhu, in the Provincial District of Auckland,New Zealand, have invented new and useful Improvements in Balance Mechanism for Wheeled Vehicles, of which the following is a specification.

This is a division of my original application,,filedAugust 50,1897, Serial No. 650,053.

This invention relates to that class of wheeled vehicles wherein crossing levers are centrally pivoted together andhave their free 'extremities flexibly or loosely connected or jointed to the vehicle-body and to the vehicleaxle for the purpose of equalizing theweight on the vehicle-springs.

The object of the present invention is to provide a new and improved construction of crossing levers and bracket-bearin gs in which the extremities of the arms are arranged.-

This object isaccomplished in the manner and by the means hereinafter described and claimed, reference being made to the accompanying drawings, in which- Figure l is a rear elevation showing portions of a vehicle-body and an axle with my invention in operative connection therewith. Fig. 2 is a sectional View taken on the line 2 2, Fig. 1; and Fig. 3 is a detail sectional elevation showing one of the lever-arms and the bracket-bearings in which the extremities thereof are arranged. v

The invention comprises two crossing leverarms 0 0, made of hard cast-steel or othersuitable metal, more or less flat and pivoted together at their center. At the pivotal point the lever-arm G is provided with a round hollow projection orsleeve E, and the other lever-arm D has a hole L formed therein, into which the said projection or sleeve fits, the arm D being cut out in such a manner as not only to admit the sleeve or projection, but also to admit of ball-bearings being placed between the sleeve or projection and wall of the hole L. When the 'cross arms or bars 0 D are fitted together, they are held in place by means of a bolt F, having a head atone end and a screw and nut A boss may be used where the arm D are so arranged that the center of the bolt E coincides with the point of intersection of the two arms 0 and D. When connected, the projection E of the arm 0, with the balls 0, acts as a pivot on which the arm D moves in proportion to the weight pressing on the upper ends of the arms.

Thevehiole-body and the axle are provided, respectively, at one side of the vehicle with sectional bracket-bearings P, constructed interiorly with ball-sockets, and the body and axle are provided at the opposite side of the vehicle with bracket-bearings R, constructed with substantially horizontal sockets or guide passages. The crossing lever-arms O and D are provided at one extremity with balls or spheres Q, fitting the ball-sockets in the upper and lower bracket-bearings P, while at the opposite extremity the lever-arms are constructed with substantially horizontal shanks S, slidable in the substantially horizontal sockets or guide-passages provided in the upper and lower bracket-bearings R, the con* struction being such that when the vehiclebody rises and falls the substantially horizontal shanks S will slide back and forth in the sockets or guide-passages formed in the brackets R, as will be obvious.

In practice the sockets or guide-passages in the bearing-brackets Rare slightly curved, and the shanks S are similarly curved to a slight extent to secure a free sliding motion back and forth; but, nevertheless, the shanks are approximately or substantially horizon tal. The ball-and-socket joints P and Q are at one side of the vehicle, as before stated,

vehicle, the brackets at one side having ballsockets and the brackets at the other side having approximately horizontal sockets or guide-passages, and crossing lever-arms pivoted together at their center and having at one extremity balls or spheres fitted into the said ball-sockets of the brackets at one side of the vehicle and atthe other extremity constructed with substantially horizontal shanks slidable in the sockets or guide-passages of the brackets at the opposite side of the vehicle, substantially as and for the purposes described.

' In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

DAVID MURPHY.

Witnesses:

GEORGE WILLIAM BAsLEY, PERCY HERBERT BASLEY. 

